It’s not that you as the musician care, but your royalties are part of the overall fee that that broadcaster pays for rights to broadcast the content. Those fee

It’s not that you as the musician care, but your royalties are part of the overall fee that that broadcaster pays for rights to broadcast the content. Those fees differ based on the region because the broadcaster can make different amounts of money in each region. A broadcaster in a low GDP country is going to make less in absolute money than in a high GDP country. That translates into lower payouts for the musician. Something like Netflix where the content creator is also the global broadcaster is different but not all that much so. Netflix will get less in revenue from a subscriber in a low GDP territory and so will want to pay a smaller amount of money (same portion of the local pie) for those views.